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mina [271]
3 years ago
11

What do you use to write on a blackboard? ​

Physics
2 answers:
Archy [21]3 years ago
6 0

Answer:

Chalk

Explanation:

please mark as brainliest

Elina [12.6K]3 years ago
4 0

Answer:

Chalk, expo markers. Why?

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GRAVITATIONAL FORCE

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A coin tossed upward in the air which falls back down when released is therefore under the influence of gravity i.e GRAVITATIONAL FORCE while it moves upward after it is released

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